“You should follow the signs and road markings and get into the lane as directed.

"In congested road conditions do not change lanes unnecessarily.

"Merging in turn is recommended but only if safe and appropriate when vehicles are travelling at a very low speed, e.g. when approaching road works or a road traffic incident. It is not recommended at high speed.”

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Why do some people have an issue with zip-merging?

It's a good question, and basically it's because as British people we love queueing so much. Zip-merging completely goes against this.

When motorists encounter a lane closure on a motorway or dual carriageway, the majority of drivers follow the etiquette of moving over early, but this creates one long, slow line of traffic and a near-empty outside lane.